With all three listed build.mk settings, I'm unable to make install: arch: linux-amd64 I had no problem building rc1 (7.10.0.20141222). # config 1 BuildFlavour = perf V = 0 GhcLibWays = v DYNAMIC_GHC_PROGRAMS = NO DYNAMIC_BY_DEFAULT = NO GhcHcOpts= # config 2 BuildFlavour = perf V = 0 DYNAMIC_GHC_PROGRAMS = NO DYNAMIC_BY_DEFAULT = NO GhcHcOpts= # config 3 BuildFlavour = perf V = 0 DYNAMIC_GHC_PROGRAMS = NO DYNAMIC_BY_DEFAULT = NO # copy config to mk/build.mk $ perl boot $ ./configure --prefix=/usr/local/ghc/7.10.0.20150123 $ make install [...] Installing library in /usr/local/ghc/7.10.0.20150123/lib/ghc-7.10.0.20150123/ghcpr_FgrV6cgh2JHBlbcx1OSlwt ghc-cabal: dist-install/build/HSghcpr_FgrV6cgh2JHBlbcx1OSlwt.o: does not exist ghc.mk:918: recipe for target 'install_packages' failed make[1]: *** [install_packages] Error 1 Makefile:71: recipe for target 'install' failed make: *** [install] Error 2